400673741 has 4 divisors (see below), whose sum is σ = 431494812. Its totient is φ = 369852672.

The previous prime is 400673737. The next prime is 400673747. The reversal of 400673741 is 147376004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27604516 + 373069225 = 5254^2 + 19315^2 .

It is a cyclic number.

It is not a de Polignac number, because 400673741 - 2² = 400673737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400673698 and 400673707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400673747) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15410516 + ... + 15410541.

It is an arithmetic number, because the mean of its divisors is an integer number (107873703).

Almost surely, 2^400673741 is an apocalyptic number.

It is an amenable number.

400673741 is a deficient number, since it is larger than the sum of its proper divisors (30821071).

400673741 is a wasteful number, since it uses less digits than its factorization.

400673741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30821070.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 400673741 is about 20016.8364383586. The cubic root of 400673741 is about 737.2197481949.

The spelling of 400673741 in words is "four hundred million, six hundred seventy-three thousand, seven hundred forty-one".